05000271/LER-1980-041-03, /03L-0:on 801229,4-inch Reactor Water Cleanup Line 3 Found Leaking.Cause Under Investigation.Affected Portion of Pipe Replaced

/03L-0:on 801229,4-inch Reactor Water Cleanup Line 3 Found Leaking.Cause Under Investigation.Affected Portion of Pipe Replaced

ML20003A371
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	01/28/1981
From:	Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20003A363	List: 05000271/LER-1980-041, Forwards LER 80-041/03L-0 05000271/LER-1980-041-03, /03L-0:on 801229,4-inch Reactor Water Cleanup Line 3 Found Leaking.Cause Under Investigation.Affected Portion of Pipe Replaced
References
LER-80-041-03L, LER-80-41-3L, NUDOCS 8102030570
Download: ML20003A371 (1)

LER-1980-041, /03L-0:on 801229,4-inch Reactor Water Cleanup Line 3 Found Leaking.Cause Under Investigation.Affected Portion of Pipe Replaced

Event date:
Report date:
2711980041R03 - NRC Website

text

NIC FOIM 366 U. S. NUCLEAR REGULATORY COMMISSION (7 77) e LICENSEE EVENT REPORT LER 80-41/3L CONTROL SLOCX: l

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l 1 lh (FLEASE NtNT OR TYPE ALL REQUIRED INFOKMATION!

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4 60 61 OOCKET NuMgER 68 69 EVENT QATE 74 4

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$0 EVENT DESCRIPTION AND PRCSA8LE CONSECUENCES h t o i : 1 l During startup at 24 percent power, routine operator surveillance discovered water i

lo j al I leakage from the 4 inch. Reactor Water Cleanup Line 3.

Upon close inspection, two l

10 ! a l l areas of water weepage were found.

There were no consequences to the public health I l o i s I l and safety as a result of this event.

Similar occurrences were reported to the l

10 t s i I Commission as LER 80 37 & 79-01.

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CAUSE

CAUSE COMP.

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33 JA JS 36 31 40 el 42 43 44 47 CAUSE CESCRIPTION AND CORRECTIVE ACTICNS h i1 10II The Reactor Cleanun Tine was isolated and the affected norrinn of the nino sm e [i}il i replaced with a low carbon stainless steel pipe.

The pipe material from the I

,,,;, ; regenerative to the nonregenerative heat exchanger was ASTM-A-312, type 304. A l

,,,3, l sample of this pipe will be sent to a laboratory for analysis of the failure mode. [

i,,4, i and the results provided in a subsequent report.

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OISCOVERY CESCRIPTION li i s l l C l@ l 0l 2 l4 l@l NA l

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1. ERSONNEL EXPCSURES cEsCRiPTio~ @

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7 8 3 11 12 80 LCS3 OP OR DAMAGE TO P4CILITY TV'E D ESCpl#TICN 1 : 19 ! 12 l@l NA l

7 8 9 10 30 l 2 i o l Whl Vermont Yankee Daily Status Report 12/30/80.

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